'One country, two systems' in doubt as Beijing ups media control in Hong Kong

In 1997, a century and a half of British rule in Hong Kong came to an end, as the island passed back under Chinese control. As a result, Hong Kong has benefited from the "one country, two systems" principle, whereby it is part of China but retains certain rights, such as freedom of speech. Yet some residents say they've noticed a marked difference in Beijing's attitude to the island in recent times and fear that their precious freedoms are being eroded.